Acaricis


           Fig. 1.   Acaricis plana  female   dorsum

Fig. 1. Acaricis plana female dorsum


           Fig. 2.   Acaricis plana  female   anterior margin of the prodorsum indicating forked   projection.

Fig. 2. Acaricis plana female anterior margin of the prodorsum indicating forked projection.


           Fig. 3.   Acaricis plana  female   venter

Fig. 3. Acaricis plana female venter


           Fig. 4.   Acaricis  sp. adult   female

Fig. 4. Acaricis sp. adult female


Key characters

  • body extremely flat
  • c1, c2, d2, e2 absent (Fig. 1) 
  • h2 elongate (Fig. 1)
  • anterior margin of prodorsum with forked median projection (Fig. 2)
  • ventral, genital, anal plates not developed
  • 2 pairs ps setae (Fig. 3)
  • 4 segmented palp
  • g1 inserted anterior to g2

Similar taxa

Gahniacarus - c1 present; e1 absent; palp 3 segmented; c1, d1 similar to other dorsal setae

Cyperacarus - c1 present; e1, f3 absent; palp 3 segmented; 3 projections on anterior margin prodorsum

Prolixus - body elongate; f2 present or absent; anterior margin of prodorsum smoothly rounded or with small projection; palp 3 segmented

Tenuipalpus - c1, f2 present or absent; ventral and genital plates well developed; palp 1-3 segmented

Number of species

Two - A. danutae, A. plana

Authority

Beard and Gerson

Distribution

Australia

Hosts

Cyperaceae (sedges)

Colour

  • yellow, orange and green colours when alive (Fig. 4)
  • eggs yellow to orange